<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>错误页面</title>
    <style type="text/css">
        .err{
            color: red;
            font-size: 50px;
            text-align: center;
        }
    </style>
</head>
<body>
    <div class="err">
        哎呀,出错了........
    </div>
</body>
</html>